#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
int main()
{
	char x;
	while (scanf(" %c", &x) != EOF)
	{
		if ((x == 'a') || (x == 'e') || (x == 'i') || (x == 'o') || (x == 'u'))
		{
			printf("Vowel\n");
		}
		else if ((x == 'A') || (x == 'E') || (x == 'I') || (x == 'O') || (x == 'U'))
			printf("Vowel\n");
		else
			printf("Consonant\n");
	}
	return 0;
}